ClickHouse in anger

We needed a data warehouse we actually controlled. Not a managed SaaS, something we could wire up ourselves: operational data from Postgres, event streams from Kafka, analytical queries that had to be fast. ClickHouse was the answer. Here’s what I actually ran into building it. Postgres to ClickHouse via ClickPipes CDC The requirement was simple: don’t let ClickHouse go stale. The application was still writing to Postgres constantly, so a one-time dump was useless....

May 27, 2026 · 4 min